diff --git a/.changeset/khaki-gorillas-sell.md b/.changeset/khaki-gorillas-sell.md
new file mode 100644
index 00000000..146638b3
--- /dev/null
+++ b/.changeset/khaki-gorillas-sell.md
@@ -0,0 +1,5 @@
+---
+"@ckb-lumos/rpc": minor
+---
+
+refactor: added null and boolean for batch client
diff --git a/packages/rpc/src/index.ts b/packages/rpc/src/index.ts
index c101ed38..778c3bb7 100644
--- a/packages/rpc/src/index.ts
+++ b/packages/rpc/src/index.ts
@@ -1,5 +1,5 @@
 import { Base } from "./Base";
-import { Method } from "./method";
+import { JSONValue, Method } from "./method";
 import { CKBComponents } from "./types/api";
 import { formatter as paramsFormatter } from "./paramsFormatter";
 import * as resultFormatter from "./resultFormatter";
@@ -85,7 +85,7 @@ export class CKBRPC extends Base {
   /* eslint-disable */
   public createBatchRequest = <
     N extends keyof Base,
-    P extends (string | number | object)[],
+    P extends JSONValue[],
     R = any[]
   >(
     params: [method: N, ...rest: P][] = []
diff --git a/packages/rpc/src/method.ts b/packages/rpc/src/method.ts
index 789de8c2..539946dd 100644
--- a/packages/rpc/src/method.ts
+++ b/packages/rpc/src/method.ts
@@ -5,6 +5,11 @@ import { DEFAULT_RPC_TIMEOUT } from ".";
 import AbortController from "abort-controller";
 import fetch_ from "cross-fetch";
 
+type JSONPrimitive = string | number | boolean | null;
+type JSONArray = JSONValue[];
+type JSONObject = { [key: string]: JSONValue };
+export type JSONValue = JSONPrimitive | JSONArray | JSONObject;
+
 export class Method {
   #name: string;
   #config: RPCConfig;
@@ -41,7 +46,7 @@ export class Method {
   }
 
   /* eslint-disable @typescript-eslint/ban-types, @typescript-eslint/explicit-module-boundary-types */
-  public call = async (...params: (string | number | object)[]) => {
+  public call = async (...params: JSONValue[]) => {
     const payload = this.getPayload(...params);
     const controller = new AbortController();
     const signal = controller.signal as AbortSignal;
@@ -72,7 +77,7 @@ export class Method {
     return res;
   };
 
-  public getPayload = (...params: (string | number | object)[]) => {
+  public getPayload = (...params: JSONValue[]) => {
     const data = params.map(
       (p, i) =>
         (this.#options.paramsFormatters[i] &&